.hea{
    display: flex;
    justify-content: space-evenly;
    background-color: darkgray;
    height: 100px;
    line-height: 100px;
    text-align: center;

}
.hea li{
    list-style: none;
    width: 25%;
}
*{
    margin: 0;
    padding: 0;
}
.hea li:hover{
    background-color: aquamarine;
}
.bg{
    background-color: rgb(89, 137, 192);
}